Matched Pair RCA 12SN7 12SN7GT Vacuum Tubes RCA 6JH6 NOS NIB new in box Philco 35Z3

new in box Philco 35Z3 tubes tested to spec on our Paul Hart-calibrated TV7/U

65 and 79 where minimum (65%) is 45

" two of Pink Floyd's most delicate and ethereal songs

These three Sylvania 2AF4A tubes tested to spec on our Paul Hart-calibrated TV7/U

Matched Pair RCA 12SN7 12SN7GT Vacuum Tubes RCA 6JH6 NOS NIB new in box Philco 35Z3This matched pair of RCA 12SN7GT dual triodes was tested on our Paul Hart calibrated TV7 for shorts, gas and transconductance. There were no shorts or gas. Transconductance measured 63 64 for Tube One and 66 60 for Tube Two. Minimum (65%) is 50. They have black plates; tall bases; D getters; steel support rods and KR and MC date codes, respectively. I am playing them as I write in my Radio Craftsmen RC 2 monoblocks with RCA Living Stereo's CD of